Find the value of x and y if x+y and xy are given in linear equation
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You can find by using an algebraic identity.
(a+b)^2=(a-b)^2+4ab
or (a-b)^2=(a+b)^2-4ab
(a+b)^2=(a-b)^2+4ab
or (a-b)^2=(a+b)^2-4ab
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